Capping device



Sept. 6, 1938. PQMMER 2,129,359

CAPPING DEVICE Filed Aug. 18, 1936 l -...q n V A y A '..4 :5. i A 24 MW VQ@ Patented sept. e, 193s A 2,129,359

UNITED STATES PATENT OFFICE CAPPING DEVICE Erwin Pompier, Vienna, Austria Application August 1s, i936, serial No. 96,580 In Austria March 7, 1936 2 Claims. (C1. 226-85) This invention relates to capping machines and The screw-threaded retaining ring 28 for holdthe like and more particularly to asealing meching the various parts together is connected to the anism used in connection therewith, for sealing screw threaded part 22 of the lower portion of the caps on bottle and the like. sealing head I 9 and the collar 23', is screw- The main object of the invention is to provide threaded to receive the insertion piece 26 which 5 a sealing or capping device of convenient, deis bored to approximately the circumference of pendable and emcient construction for autothe neck of the bottle and ilared conically at the matically sealing caps of metal and the like on lower end. bottles. The spiral spring 29 for-ms a resilient connec- 10 Another object is to provide a sealing head for tion between the pressure head 23 and the seal- 10 use in connection with capping machines for ing head I9. sealing comparatively fragile caps on bottles The pressure plate 23 is perforated to provide without tearing or otherwise injuring the foil. sockets for dies or type carrying the desired in- Still another object is to provide Va capping dicia for impression on the caps. The lower pordevice which may be employed for the additional tions oi the perforations 30 have a progressively is purpose of printing or impressing the desired indecreasing diameter as they approach the upper dicia on the bottle caps,`and Surface of the pressure plate 23 where they be- A further object is to provide a capping head come very fine holes. from which the printing dies may be easily re- The printing dies 3| received in the lower pormoved. tion of the perforations are held in position by 2O Although the novel features which are believed means of pins 32 which are inserted sidewise in to be characteristic of this invention will be parradial bores provided in the pressure plate 23. ticularly pointed out in the claims appended These clamping pins 32 are pressed against the hereto, the invention itself as to its objects and dies 3I by means of a leaf spring or rubber ring advantages and the manner in which it may be 33 arranged in the same plane with the periph- 25 carried out, may be better understood by refereral groove 34 in the mantle face of the pressure ring to the following description taken in conplate 23. nection with the accompanying drawing forming The printing may easily be changed by ejecting a part thereof. the printing dies by means of a needle or similar In the drawing: means introduced into the perforations on the 30 Figure 1 is a sectional view of aI capping head upper face of the plate 23. After the exchanged according to the invention and printing dies have been inserted into the per- Flgure 2 is a plan view of the lower part of the forations 3U on the bottom surface of the plate capping head illustrated in Figure 1 showing por- 23, the ring 33 may be replaced in the peripheral tions broken away. groove 34 whereby the clamping pin 32 will again 35 In the embodiments of the invention illustrated press against the dies and hold the same in poin the drawing the capping mechanism comprises sition. a sealing head I9 connected to the supporting In operation, as the bottle carrying the bottle member |9a by means of a nut 2l engaging the cap is pressed upward into the sealing head, the 40 latter. The supporting member I 9a is carried pressure plate 23 engages the cap and presses 40 by the capping machine (not shown). it firmly down on the top of the bottle. This up- The sealing head I9 is recessed to receive the Ward movement will also cause the bevelled surpressure plate 23 which is connected to the collar face 24a of the segments 24 to ride along the 23 by means of pins 232. 'I'his pressure plate is bevelled surface ISb of the sealing head and in turn provided lwith a recess 233 for receiving force the segmental pressure ring to contract in- 45 the bottle cap. wardly and force the rubber side-pressure or The pressure plate 23 and the collar 23" are sealing ring 25 also to contract inwardly to press spaced from one another by a segmental ring firmly against the sides of the cap and seal the having a plurality oi.' segments 24. The'lower same onto the bottle top.

` portion of the sealing head I9 has an annular As the particular member holding the bottle 50 `bevelled surface I 3b engaging the bevelled surand forcing it upward into the sealing head is face 24a of the segment 2l. not part of the invention, it is not believed neces- The rubber side-pressure or sealing ring 25 sary to describe and illustrate the same. It is is also retained between'the pressure plate 23 and obvious that this mechanism may be power or the collar 23. hand operated in the conventional manner and 55 may form a part of the complete capping machine. It is equally obvious that instead of forcing the bottle neck upward into the sealing head, the sealing head may be reciprocably mounted in the machine so that it may be pressed downward on the bottle neck.

It is also to be understood that the embodiment of the invention as shown is for the purpose of illustration only and the invention is to be limiteti only in accordance with the following claims interpreted in view of the prior art.

What is claimed is:

1. A bottle cap sealing device comprising a sealing head, a cap engaging member and an interconnected collar member spaced from said cap engaging member in said sealing head and adapted to be reciprocated within said sealing head by an inserting movement oi the bottle neck, a sealing ring, pressing means positioned between said members and means operable in response to said relative reciprocating movement to contract the mst-mentioned means and cause them to exert radial pressure on said ring whereby the sides of the cap will 'be pressed ilrmly against the bottle top and sealed securely thereon, said cap engaging member being perforated to form sockets for printing dies whereby the cap may be -imprinted with the desired indicia during the cap sealing movement, a peripheral groove in said cap engaging member, a resilient member in said groove and a plurality of members extending radially from said sockets to said resilient member for holding the dies iirmly in position during the cap sealing movement.

V2. A cap sealing device according to claim 1 in which said sockets have a progressively decreasing diameter towards the upper surface of said cap engaging member whereby the printing dies may be easily ejected by the insertion oi' a needle. 1

ERWIN POMMER. 

